JP3595634B2 - Compound eye camera and image processing method - Google Patents

Compound eye camera and image processing method Download PDF

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Publication number
JP3595634B2
JP3595634B2 JP26120796A JP26120796A JP3595634B2 JP 3595634 B2 JP3595634 B2 JP 3595634B2 JP 26120796 A JP26120796 A JP 26120796A JP 26120796 A JP26120796 A JP 26120796A JP 3595634 B2 JP3595634 B2 JP 3595634B2
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Japan
Prior art keywords
video signal
imaging
display
plurality
eye camera
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Expired - Fee Related
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JP26120796A
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Japanese (ja)
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JPH1090814A (en
Inventor
直 倉橋
基博 石川
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キヤノン株式会社
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Priority claimed from DE69733233T external-priority patent/DE69733233T2/en
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Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a compound eye camera and an image processing method, and more particularly to a compound eye camera and an image processing method capable of capturing and displaying a stereoscopic image or a two-dimensional image.
[0002]
[Prior art]
When capturing and displaying a stereoscopic video, a camera for capturing a stereoscopic video that has been considered up to now basically obtains a set of videos with parallax from a plurality of cameras, and then obtains a stereoscopic video dedicated to the camera. A stereoscopic image has been provided to the operator by a display device (Japanese Patent Laid-Open No. 62-21396).
[0003]
In addition, in this stereoscopic video imaging camera, compatibility with a two-dimensional video, which is the mainstream of the current video, is not considered, and the stereoscopic video imaging camera and the two-dimensional video imaging camera are separated. Each has been independent.
[0004]
[Problems to be solved by the invention]
However, in this camera for capturing a three-dimensional image, since the camera that captures the image and the three-dimensional display that displays the three-dimensional image are separated, the image may not be displayed three-dimensionally. Was difficult to do.
[0005]
In addition, since the stereoscopic video imaging camera is not compatible with the current mainstream of two-dimensional video, it is necessary to purchase a stereoscopic video camera again when an individual attempts to capture a stereoscopic video. There was a heavy burden.
[0006]
Therefore, an object of the present invention is to provide a compound-eye camera and an image processing method that can always display a stereoscopic image during imaging, adjust the stereoscopic effect of the image while capturing the image, and are compatible with 2D images. It is in.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 displays a plurality of image pickup means for collecting an image of a subject by condensing a subject light, and displaying a plurality of video signals of the subject imaged by the plurality of image pickup means. Stereoscopic video signal synthesizing means for synthesizing a plurality of video signals of the subject imaged by the plurality of imaging means so as to be visually recognized as stereoscopic video signals, and the stereoscopic video signal synthesizing means. A composite video signal display means for displaying a stereoscopic video signal synthesized by An imaging selection unit that selects one of the plurality of imaging units; and a unit that images the subject with the one imaging unit selected by the imaging selection unit. It is characterized by having.
[0008]
According to a second aspect of the present invention, in the compound eye camera according to the first aspect, a plurality of video signals of the subject imaged by the plurality of imaging units can be visually recognized as two-dimensional video signals. 2D video signal display means It is characterized by.
[0009]
According to a third aspect of the present invention, in the compound eye camera according to the second aspect, the stereoscopic video signal synthesizing unit and the two-dimensional video signal are combined. display Choose alternatives Display selection means It is characterized by having.
[0010]
According to a fourth aspect of the present invention, in the compound eye camera according to the second or third aspect, the display cycle of the stereoscopic video signal on the composite video signal display means is twice as long as the display cycle of the two-dimensional video signal. Features.
[0011]
According to a fifth aspect of the present invention, in the compound eye camera according to any one of the first to fourth aspects, the composite video signal display means includes a lenticular lens.
[0012]
According to a sixth aspect of the present invention, in the compound eye camera according to any one of the first to fourth aspects, the composite video signal display means includes a parallax barrier.
[0013]
According to a seventh aspect of the present invention, in the compound eye camera according to any one of the second to fourth aspects, the compound eye camera includes eyeglasses with shutters that operate in synchronization with a display cycle of the two-dimensional video signal on the composite video signal display unit. It is characterized by the following.
[0015]
Claim 8 The invention of claim 1 to 7 In the compound eye camera according to any one of the above, the plurality of imaging units are held so as to be rotatable with respect to the composite video signal display unit, respectively, and each of the plurality of imaging units with respect to the composite video signal display unit is It is characterized by comprising a rotation angle detecting means for detecting the rotation angle.
[0016]
Claim 9 The invention of claim 8 2. The compound eye camera according to claim 1, wherein the two-dimensional video signal is based on a rotation angle detected by the rotation angle detection means. display Means and the stereoscopic video signal synthesizing means. Second display selection means It is characterized by having.
[0017]
Claim 10 The invention of the present invention is an image processing method comprising: a plurality of imaging steps of converging subject light to image a subject; and a displaying step of displaying a plurality of video signals of the subject imaged in the plurality of imaging steps. A stereoscopic video signal synthesizing step of synthesizing a plurality of video signals of the subject imaged in a plurality of imaging steps so as to be visually recognized as a stereoscopic video signal; and a synthesizing step of displaying the stereoscopic video signal synthesized by the stereoscopic video signal synthesizing step. Video signal display process and An imaging selection step of selecting one imaging step of the plurality of imaging steps, and a step of imaging the subject in the one imaging step selected by the imaging selection step. It is characterized by including.
[0018]
Claim 11 The invention of Claim 10 In the image processing method, a plurality of video signals of the subject imaged in the plurality of imaging steps can be visually recognized as two-dimensional video signals. 2D video signal display process for displaying It is characterized by including.
[0019]
Claim 12 The invention of claim 11 The image processing method according to claim 1, wherein the stereoscopic video signal synthesizing step and the two-dimensional video signal are performed. display Select process and alternative Display selection process It is characterized by including.
[0020]
Claim Thirteen The invention of claim 11 or 12 In the image processing method described above, a display cycle of the stereoscopic video signal in the composite video signal display step is twice as long as a display cycle of the two-dimensional video signal.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a compound eye camera according to an embodiment of the present invention will be described with reference to the drawings.
[0022]
(First Embodiment)
Hereinafter, the configuration of the compound eye camera according to the first embodiment of the present invention will be described with reference to FIGS. 1 (A), 1 (B) and 2. Here, FIG. 1A is a front view of the compound eye camera according to the first embodiment of the present invention, and FIG. 1B is a rear view of the compound eye camera according to the first embodiment of the present invention. FIG. 2 is a perspective view of the compound eye camera according to the first embodiment of the present invention.
[0023]
First, as shown in FIGS. 1 (A) and 1 (B), the compound-eye camera has two camera bodies 1 and two lenses 3a and 3b attached to the left and right sides of the camera body 1 and having two lenses 3a and 3b on the front side, respectively. The camera includes camera heads 2 a and 2 b and a three-dimensional display 4 provided on the back side of the camera body 1. Here, the camera heads 2a and 2b constitute an imaging unit, and the three-dimensional display 4 constitutes a display unit.
[0024]
The camera heads 2a and 2b are arranged on the left and right sides of the camera body 1 in order to give a three-dimensional effect to the image, and have a configuration in which the base line length is long. The stereoscopic display 4 stereoscopically displays images obtained from the lenses 3a and 3b included in the left and right camera heads 2a and 2b. Although many types of the three-dimensional display 4 are conceivable, a lenticular type that does not require special equipment such as glasses with shutters is used here.
[0025]
As shown in FIG. 2, at the time of shooting, the operator can stereoscopically view a stereoscopic image captured by the lenses 3 a and 3 b on the stereoscopic display 4. At this time, the lenses 3a and 3b can be rotated with respect to the stereoscopic display 4 according to the subject. Alternatively, the positions of the lenses 3a and 3b may be fixed according to the subject, and the stereoscopic display 4 may be rotated so as to match the operator.
[0026]
Next, the configuration of the compound eye camera according to the first embodiment of the present invention will be described with reference to FIG. Here, FIG. 3 is a block diagram of a configuration of the compound eye camera according to the first embodiment of the present invention.
[0027]
This compound eye camera has lenses 37a, 31b, two image sensors 32a, 32b, two A / D converters 33a, 33b, two FIFs 34a, 34b, a timing generator 35, a signal converter 36, and a CPU 37 including a memory therein. , A display control unit 38, a stereoscopic display 39, a recording control unit 40, a recording medium 41, and a camera control unit 42. Here, the signal converter 36 constitutes a stereoscopic video signal synthesizing unit, a two-dimensional video signal synthesizing unit, and a first selecting unit, the stereoscopic display 39 constitutes a synthetic video signal displaying unit, and the camera control unit 42 Two selection means are constituted.
[0028]
The imaging devices 32a and 32b, the A / D converters 33a and 33b, and the FIFs 34a and 34b are connected in series, and a signal converter 36 is further connected. The stereoscopic display 39 is connected to the signal converter 36 via the display control unit 38, and the recording medium 41 is connected to the signal converter 36 via the recording control unit 40. The A / D converters 33a and 33b are directly connected to the CPU 37, and the FIFs 34a and 34b are connected to the CPU 37 via the timing generator 35. The display control unit 38, the recording control unit 40, and the camera control unit 42 are connected to the CPU 37, respectively.
[0029]
The imaging devices 32a and 32b are composed of a CCD or the like, and convert images captured by the lenses 31a and 31b into electric signals by a photoelectric effect, and the A / D converters 33a and 33b convert the electric signals into digital signals. This digital signal is a two-dimensional video signal. The FIFs 34a and 34b temporarily store the two-dimensional video signal for generating a stereoscopic video signal described later. The timing generator 35 supplies a write control signal to the FIFOs 34a and 34b. The CPU 37 controls A / D converters 33a and 33b, FIFOs 34a and 34b, a timing generator 35, a signal converter 36, a display control unit 38, a recording control unit 40, and a camera control unit 42. The signal converter 36 converts the two-dimensional video signal written in the FIFs 34a and 34b into a three-dimensional video signal, and the display controller 38 displays the three-dimensional video signal generated by the signal converter 36 on a three-dimensional display 39. The recording control unit 40 writes a stereoscopic video signal on a recording medium 41 used by the camera, and the camera control unit 42 transmits an input signal of the content input from the operator to the CPU 37.
[0030]
First, when the operator inputs an operation such as recording or reproduction of an image to the camera control unit 42, a signal corresponding to this input is sent from the camera control unit 42 to the CPU 37, and the CPU 37 controls each unit. In the present embodiment, it is assumed that the stereoscopic video imaging mode is selected by the camera control unit 42. The images captured by the operator through the lenses 31a and 31b are formed on the imaging devices 32a and 32b. Further, the images formed on the imaging devices 32a and 32b are converted into electric signals by photoelectric conversion, and subsequently converted into digital signals by A / D converters 33a and 33b. This digital signal is a two-dimensional video signal. At this time, the left and right two-dimensional video signals are driven in synchronization with each other under the control of the CPU 37, so that signals at the same position on the left and right are always processed. The two-dimensional video signal is temporarily written to the FIFs 34a and 34b to generate a stereoscopic video signal described later. Each of the FIFOs 34a and 34b has an area for storing a two-dimensional video signal corresponding to two screen images of the three-dimensional display 39, and a two-dimensional image corresponding to one screen image of the three-dimensional display 39 at the beginning of the FIFOs 34a and 34b. After the video signal is written, a two-dimensional video signal corresponding to the video of one screen of the stereoscopic display 39 is written to the rear of the FIFOs 34a and 34b. When a two-dimensional video signal corresponding to two screens of the three-dimensional display 39 is written to the FIFOs 34a and 34b, the two-dimensional video signal corresponding to one screen of the three-dimensional display 39 is overwritten again at the beginning of the FIFOs 34a and 34b. Will be done. The write control signal is supplied by a timing generator 35 controlled by the CPU 7.
[0031]
The two-dimensional video signal written in the FIFs 34a and 34b is converted by the signal converter 36 into a stereoscopic video signal. The conversion of a two-dimensional video signal into a three-dimensional video signal refers to a right video signal (FIG. 4A) and a left video signal (FIG. 4A), which are two-dimensional video signals written in FIFs 34a and 34b, as shown in FIG. 4 (B)) are alternately arranged for each vertical line (FIG. 4 (C)) to generate one stereoscopic video signal. Here, FIG. 4 is an explanatory diagram of conversion of a two-dimensional video signal into a stereoscopic video signal, where (A) shows a right video signal, (B) shows a left video signal, and (C) shows a stereoscopic video signal. Is shown.
[0032]
When the signal converter 36 simply converts all the regions of the right video signal and the left video signal, the generated stereoscopic video signal is twice as wide as the original right video signal or left video signal. Therefore, it is necessary to thin out the generated three-dimensional video signal by half in the horizontal direction, or to generate a three-dimensional video signal using a part of the right video signal or the left video signal. Here, only the central portion of the generated stereoscopic video signal is used for display so that the substantial aspect ratio of the video signal does not change.
[0033]
Under the control of the CPU 37, the signal converter 36 writes a two-dimensional video signal corresponding to an image of one screen of the stereoscopic display 39 at the head of the FIFOs 34a and 34b, and then reads out the two-dimensional video signal and simultaneously reads the two-dimensional video signal. , 34b, a two-dimensional video signal corresponding to an image of one screen of the three-dimensional display 39 is written. Therefore, the write control signal and the read control signal transmitted from the CPU 37 always correspond to one screen of the three-dimensional display 39. Will be shifted by one period of the two-dimensional video signal corresponding to the video of FIG. This situation is shown in the explanatory diagram of the control signal in FIG. In the signal converter 36, since the read control signal is simultaneously supplied to the FIFs 34a and 34b, the right video signal or the left video signal in the FIFs 34a and 34b is twice as fast as the speed at which the two-dimensional video signal is written. Are read alternately, and processing is sequentially performed without causing a frame drop during imaging. By this processing, the signal converter 36 generates a stereoscopic video signal having a size equal to the size of one of the right video signal and the left video signal.
[0034]
The stereoscopic video signal generated by the signal converter 36 is sent to the recording control unit 40 via the display control unit 38 under the control of the CPU 37, and is recorded. The display controller 38 displays the generated stereoscopic video signal on the stereoscopic display 39.
[0035]
FIGS. 6A and 6B are explanatory views of a stereoscopic display 39 displaying a stereoscopic video signal as viewed from above, in which a right video signal and a left video signal are alternately arranged every vertical line. The stereoscopic video signal is displayed as it is. On the front surface of the stereoscopic display 39, stereoscopic video adapters are attached in advance so that stereoscopic video signals are separately incident on the left and right eyes of the operator. There are several types of three-dimensional image adapters. FIG. 6A shows a lenticular lens 61 arranged as a three-dimensional image adapter, and FIG. 6B shows a parallax barrier 62 as a three-dimensional image adapter. Are shown. Note that the pitch of the lenticular lens 61 and the parallax barrier 62 is adjusted in advance to the pixel pitch of the stereoscopic display 39 and the pitch calculated from the observation position of the operator. This adapter can be removed in consideration of compatibility with two-dimensional video signals.
[0036]
The recording control unit 40 writes a stereoscopic video signal on a recording medium 41 used in the compound eye camera. The type of the recording medium 41 is a magnetic tape, a magnetic disk, an optical disk, a semiconductor memory, or the like. Using this recording medium 41, the recording control unit 40 saves a stereoscopic video signal as a file in a free space of the recording medium 41 in a digital format. I do.
[0037]
The start or end of recording on the recording medium 41 is performed by the operator inputting a desired operation to the camera control unit 42. Incidentally, the operator can also observe only the stereoscopic video signal on the stereoscopic display 39 without performing the recording operation.
[0038]
Next, a process performed by the compound-eye camera when a stereoscopic video signal recorded on the recording medium 41 is reproduced will be described. Since the recording medium 41 has a plurality of files in which a stereoscopic video signal is recorded, the recording control unit 40 first checks the area in the recording medium 41 and sends the recorded files to the CPU 37. . The CPU 37 selects a file that can be reproduced as a stereoscopic video signal, arranges a list of the selected file names into an arbitrary display format, sends it to the display control unit 38, and displays it on the stereoscopic display 39. The operator selects a file to be reproduced from the displayed list of file names and inputs the file to the camera control unit 42. The camera control unit 42 transmits the file name selected by the operator to the CPU 37. The selected file is read from the recording medium 41 by the CPU 37 via the recording control unit 40, and displayed on the stereoscopic display 39 as a stereoscopic video signal by the display control unit 38. As described above, the captured stereoscopic video signal can be easily reproduced without requiring any special device.
[0039]
In addition, as shown in the external view of the compound eye camera according to the first embodiment of the present invention in FIG. 10, microphones 5a and 5b are arranged in front of camera heads 2a and 2b, so that audio as well as video can be obtained. Also, a more three-dimensional effect can be obtained.
[0040]
Next, processing by the compound-eye camera up to the generation of the two-dimensional video signal and processing by the compound-eye camera at the time of reproducing the two-dimensional video signal will be described. In this case, recording or display of a two-dimensional video signal involves processing a video signal of only one of the lenses 31a and 31b. The selection of the lens can be made by the operator inputting to the camera control unit 42.
[0041]
The processing by the compound-eye camera up to the generation of the two-dimensional video signal is different from the processing by the compound-eye camera until the generation of the three-dimensional video signal. The signal converter 36 converts the two-dimensional video signal written in the FIFs 34a and 34b into the three-dimensional video signal. That is, it operates as a selector that sends the data to the display control unit 38 or the recording control unit 40 without processing without converting the data. Other processing is the same as the processing described above.
[0042]
When the operator performs an input for switching the imaging lens to the camera control unit 42 during the recording of the two-dimensional video signal, the two-dimensional video signal to be recorded is temporarily disturbed by the switching of the lenses 31a and 31b. In order to avoid an adverse effect, the CPU 37 switches the lenses 31a and 31b in synchronization with the capture of the two-dimensional video signal.
[0043]
The processing by the compound-eye camera at the time of reproducing the two-dimensional video signal is the same as the processing by the compound-eye camera at the time of reproducing the stereoscopic video signal. In this case, the file name of the two-dimensional video signal is displayed to the operator. Then, the selected file is displayed on the stereoscopic display 39.
[0044]
As described above, according to the first embodiment, the operator can stereoscopically observe a stereoscopic video signal captured by the compound-eye camera in real time. In addition, since the stereoscopic display 39 can be viewed with both eyes, the degree of freedom of the posture at the time of imaging is large, and the stereoscopic effect can be confirmed even when the user moves with the compound eye camera during imaging. At this time, the stereoscopic effect of the subject can be adjusted by, for example, shifting the portion used for conversion of the right and left video signals shown in FIG. 4 to the left and right. The adjustment can be performed by a simple operation such as changing the distance or zooming the lenses 31a and 31b. Further, it is also possible to easily switch to the conventional single-eye imaging.
[0045]
Note that the compound eye camera according to the first embodiment can be used for capturing any of a moving image and a still image.
[0046]
(Second embodiment)
Hereinafter, the configuration of the compound eye camera according to the second embodiment of the present invention will be described with reference to FIGS. Here, FIG. 7A is a front view of the compound-eye camera according to the second embodiment of the present invention, and FIG. 7B is a rear view of the compound-eye camera according to the second embodiment of the present invention. FIG. 8 is a perspective view of a compound eye camera according to the second embodiment of the present invention.
[0047]
First, as shown in FIGS. 7A and 7B, the compound-eye camera has a camera body 70 and one camera head 71 mounted on the camera body 70 and having lenses 75a and 75b on the front side. A connector 72 provided on the back side of the camera body 70 for connecting the glasses with shutters 74 for stereoscopic image observation to the camera body 70, and a stereoscopic display 73 provided on the back side of the camera body 70.
[0048]
The camera head 71 is configured to be rotatable around a vertical axis during imaging as shown in FIG. Further, in the glasses with shutters 74, the left and right shutters open and close in synchronization with the video signal display on the stereoscopic display 73, and the right and left video signals can be displayed separately on the left and right eyes of the operator. . Therefore, at the time of capturing a stereoscopic video signal, the display cycle of the video signal is twice as long as that of displaying a two-dimensional video signal.
[0049]
Hereinafter, the configuration of the compound eye camera according to the second embodiment of the present invention will be described with reference to FIG. Here, FIG. 9 is a block diagram of a configuration of a compound eye camera according to the second embodiment of the present invention.
[0050]
This compound eye camera includes two lenses 91a and 91b, two image sensors 92a and 92b, two A / D converters 93a and 93b, a switch 94, a unit 95, a FIF096, a display control unit 97, a stereoscopic display 98, and a recording control. The storage unit 99 includes a recording medium 100, a camera control unit 101, a shutter control unit 102, apertures 103a and 103b, aperture control units 104a and 104b, focus control units 105a and 105b, and a CPU 106 including a memory therein.
[0051]
The imaging devices 92a and 92b are connected to a unit 95 via A / D converters 93a and 93b and a switch 94. The unit 95 is connected to the FIFO 96 and the recording control unit 99, respectively. The FIF096, the display control unit 97, and the stereoscopic display 98 are connected in series, and the recording control unit 99 is connected to the recording medium 100. The FIF096, the display control unit 97, the recording control unit 99, the camera control unit 101, the shutter control unit 102, the aperture control units 104a and 104b, and the focus control units 105a and 105b are connected to the CPU 106, respectively.
[0052]
The imaging devices 92a and 92b are composed of a CCD or the like, and convert images picked up by the lenses 91a and 91b into electric signals by a photoelectric effect, and the A / D converters 93a and 93b convert the electric signals into digital signals. This digital signal is a two-dimensional video signal. The switch 94 is used to alternately transmit the two-dimensional video signals input from the left and right A / D converters 93a and 93b to the unit 95. The unit 95 performs calculations and white balance adjustment for AF (auto focus) and AE (auto exposure). The FIFO096 temporarily stores the two-dimensional video signal displayed on the three-dimensional display 98, and the display control unit 97 displays the two-dimensional video signal stored in the FIFO96 on the three-dimensional display 98. The recording control unit 99 writes the two-dimensional video signal on the recording medium 100. The camera control unit 101 transmits an input signal of the content input from the operator to the CPU 37, and the shutter control unit 102 controls driving of the glasses 74 with shutters. The aperture control units 104a and 104b control the apertures 103a and 103b, and the focus control units 105a and 105b control the positions of the lenses 91a and 91b. The CPU 106 controls the FIF 96, the display control unit 97, the recording control unit 99, the camera control unit 101, the shutter control unit 102, the aperture control units 104a and 104b, and the focus control units 105a and 105b.
[0053]
First, the operator selects a stereoscopic video mode or a normal video mode, and inputs a desired video mode to the camera control unit 101. Here, it is assumed that the stereoscopic video mode is selected. The result of the mode selection is transmitted from the camera control unit 101 to the CPU 106, and the CPU 106 controls each unit. The images captured by the operator through the lenses 91a and 91b are formed on the image sensors 92a and 92b. Further, the images formed on the image sensors 92a and 92b are converted into electric signals by photoelectric conversion, and subsequently converted into digital signals by A / D converters 93a and 93b. This digital signal is a two-dimensional video signal. Since the switch 94 sends the left and right two-dimensional video signals separately to the unit 95, the display cycle of the video signal when displaying a stereoscopic video signal is twice as long as when displaying a two-dimensional video signal. Therefore, the reading speed of the electric signals from the imaging devices 92a and 92b by the A / D converters 93a and 93b at the time of capturing a stereoscopic video signal is determined by the imaging devices 92a and 93b at the time of capturing two-dimensional video images. The read speed of the electric signal is twice as fast as the read speed of the electric signal from the second image sensor 92b. First, all the electric signals of one of the left and right image sensors 92a and 92b are read, and then the other electric signal is read. Read the signal. Control of these units is performed by the CPU 106.
[0054]
The left and right two-dimensional video signals sent to the unit 95 are subjected to calculations for AF (auto focus) and AE (auto exposure) and white balance adjustment. Calculations for performing AF (auto focus) and AE (auto exposure) are performed using a video signal luminance value of a certain area in an image, and the result is sent to the CPU 106.
[0055]
The CPU 106 determines an appropriate control amount based on the calculation result from the unit 95, the current state of the apertures 103a and 103b and the positions of the lenses 91a and 91b, and controls the aperture control units 104a and 104b and the focus control unit 105a. , 105b. The aperture control units 104a and 104b adjust the apertures 103a and 103b based on the control amount, and the focus control units 105a and 105b adjust the positions of the lenses 91a and 91b based on the control amount.
[0056]
Since the left and right two-dimensional video signals are alternately input to the unit 95, the controls of the aperture control units 104a and 104b and the focus control units 105a and 105b are alternately performed accordingly.
[0057]
The two-dimensional video signal subjected to the white balance adjustment from the unit 95 is used for display on the stereoscopic display 98 and recording on the recording medium 100.
[0058]
In the camera control unit 101, a selection is made on the stereoscopic display 98 to display a stereoscopic video signal, a right video signal, or a left video signal, and the selected result is sent to the CPU 106.
[0059]
When the display of the stereoscopic video signal is selected by the camera control unit 101, the left and right two-dimensional video signals are sequentially transmitted to the display control unit 97 via the FIF096, and the left and right two-dimensional video signals are displayed on the stereoscopic display 98. Displayed alternately. A synchronizing signal is sent from the CPU 106 to the shutter control unit 102 in accordance with the timing of the left and right switching of the two-dimensional video signal, and a signal for driving the glasses 74 with shutters is generated by the shutter control unit 102. Is sent to the glasses with shutters 74 through. The glasses with shutters 74 alternately open and close the left and right shutters in synchronization with the display of the two-dimensional video signal on the stereoscopic display 98 by the drive signal. Thereby, a stereoscopic video signal is displayed to the operator.
[0060]
When the display of the right video signal is selected by the camera control unit 101, the CPU 106 controls the FIF096 so that only the right video signal is displayed on the stereoscopic display 98. The CPU 106 sends a read control signal to the FIF096. When the two-dimensional video signal sent from the unit 95 to the FIFO 96 is a right video signal, the CPU 106 sends a write control signal to the FIFO 96, the FIFO 96 records the right video signal, and then the recorded video signal is recorded. The right side video signal is sequentially output to the display control unit 97. The right video signal output from the FIF096 is displayed on the stereoscopic display 98 via the display control unit 97. On the other hand, when the two-dimensional video signal sent from the unit 95 to the FIFO 96 is the left video signal, the CPU 106 sends only the read control signal to the FIFO 96. The FIF096 outputs the immediately preceding right image signal to the display control unit 97 again because the right image signal sent immediately before is not recorded in the FIF096 without recording the left image signal. The right video signal output from the FIF096 is displayed on the stereoscopic display 98 via the display control unit 97.
[0061]
When the display of the left video signal is selected by the camera control unit 101, the CPU 106 controls the FIF 096 so that only the left video signal is displayed on the display 98 as in the case where the display of the right video signal is selected. .
[0062]
In this way, switching between stereoscopic video display and two-dimensional video display can be easily performed by controlling the FIF096. Further, the operator can display the stereoscopic video signal on the stereoscopic display 98 once, and then switch the display to display the two-dimensional video signal on the stereoscopic display 98. Therefore, after adjusting the stereoscopic effect with the stereoscopic video signal, the framing can be adjusted with the two-dimensional video signal.
[0063]
The display cycle when displaying a two-dimensional video signal is substantially half the display cycle when displaying a stereoscopic video signal.
[0064]
The reproduction of the stereoscopic video signal is the same as in the first embodiment. When displaying and recording a two-dimensional video signal from one of the left and right lenses, the switch 94 is switched to display and record a two-dimensional video signal of only one lens. In this case, the CPU 106 controls each unit so that the processing cycle of the two-dimensional video signal is half the processing cycle of the stereoscopic video signal. Note that no drive signal is sent from the CPU 106 to the shutter control unit 102, and the driving of the glasses with shutters 74 is stopped.
[0065]
As described above, according to the second embodiment, it is possible to display or record a stereoscopic video signal or a two-dimensional video signal. Even when the two-dimensional video signal is recorded, the two-dimensional video signal can be displayed when it is not necessary to observe the three-dimensional video signal. Thus, a two-dimensional video signal without flicker can be observed.
[0066]
Note that the camera according to the second embodiment can be used for capturing any of a moving image and a still image.
[0067]
(Third embodiment)
Hereinafter, the configuration of the compound eye camera according to the third embodiment of the present invention will be described with reference to FIG. Here, FIG. 11 is a block diagram of a configuration of a compound eye camera according to the third embodiment of the present invention.
[0068]
The compound eye camera according to the third embodiment includes camera heads 113a and 113b and a compound eye camera main body 120. The camera heads 113a and 113b include lenses 111a and 111b and image sensors 112a and 112b. The compound-eye camera body 120 includes a signal combining unit 114 as a third selection unit and an angle detection unit 115a as a rotation angle detection unit. , 115b, display means 116, recording means 117, system controller 118, and release button 119.
[0069]
The imaging devices 112a and 112b, the display unit 116, the recording unit 117, and the system controller 118 are connected to the signal synthesizing unit 114, respectively. The camera heads 113a and 113b are connected to angle detecting means 115a and 115b, respectively, and the angle detecting means 115a and 115b and the release button 119 are connected to a system controller 118.
[0070]
Describing in detail the configuration of the compound eye camera, the lenses 111a and 111b have focus adjustment means and an aperture adjustment mechanism (not shown). The imaging devices 112a and 112b convert the optical images formed by the lenses 111a and 111b, respectively, into electrical video signals. The camera heads 113a and 113b are rotatably supported with respect to the compound-eye camera body 120. FIG. 12 is an external view of a compound-eye camera according to the third embodiment of the present invention. As can be seen from FIG. 12, in this embodiment, the camera heads 113a and 113b are arranged around the horizontal axis with respect to the compound-eye camera body 120. It is rotatable.
[0071]
The signal synthesizing unit 114 generates a two-dimensional video signal or a stereoscopic video signal from the video signals obtained by the imaging devices 112a and 112b. Angle detection means 115a and 115b detect the rotation angles of camera heads 113a and 113b, respectively. In this embodiment, a rotary encoder is used as the angle detecting means 115a, 115b.
[0072]
The display means 116 displays the two-dimensional video signal or the stereoscopic video signal obtained by the signal combining means 114. Here, FIG. 13 is a diagram showing the configuration of the display means 116. In FIG. 13, the liquid crystal panel 131 has a large number of display pixels, and the lenticular lens 132 is disposed on the front side of the liquid crystal panel 131. The backlight 133 is disposed on the back side of the liquid crystal panel 131. Since the display means 116 has such a configuration, the two-dimensional video signals 141 and 142 having a predetermined parallax are alternately provided according to the pitch of the lenticular lens 132 as shown in the composite diagram of the two-dimensional video signals in FIG. It is possible to display on the liquid crystal panel 131 the stereoscopic video signal 143 that is arranged and combined.
[0073]
It should be noted that a three-dimensional image display device using such a lenticular lens 132 is known as disclosed in Japanese Patent Application Laid-Open No. 3-65543, and will not be described in detail. In addition, a system capable of stereoscopic stereoscopic viewing uses a parallax barrier instead of the lenticular lens 132, and alternately displays a video signal for the left eye and a video signal for the right eye in a time-division manner and synchronizes with it. The viewer wears glasses with a shutter function so that the video signal for the left eye can be seen only by the left eye and the video signal for the right eye can be seen only by the right eye so that stereoscopic viewing is possible. Description is omitted.
[0074]
Returning to FIG. 11 again, the recording unit 117 records the video signal obtained by the signal synthesizing unit 114. A system controller 118 controls the entire compound-eye camera. The release button 119 emits a signal for starting recording of a video signal when operated by an operator.
[0075]
Hereinafter, the imaging operation of the compound eye camera according to the third embodiment of the present invention will be described with reference to FIG. Here, FIG. 15 is a flowchart showing the imaging operation of the compound-eye camera according to the third embodiment of the present invention. Unless otherwise specified, all operations of the compound-eye camera according to the third embodiment are performed by the system controller 118.
[0076]
First, when a power switch of a compound-eye camera (not shown) is turned on (step S100), focus adjustment and aperture adjustment are performed on a subject (step S101).
[0077]
Next, the rotation angles of the camera heads 113a and 113b are detected by the angle detection means 115a and 115b (step S102).
[0078]
Then, in step S103, it is determined whether or not the relative shift amounts of the respective rotation angles of the camera heads 113a and 113b are within a predetermined range.
[0079]
In step S103, when the relative shift amounts of the respective rotation angles of the camera heads 113a and 113b are within a predetermined range, the two-dimensional images obtained by the imaging devices 112a and 112b as shown in FIG. The signals 141 and 142 are combined by the signal combining means 114 into one three-dimensional video signal 143 alternately arranged in a comb shape (step S104), and the combined three-dimensional video signal 143 is displayed by the display means 116, and the operator Can visually recognize the subject three-dimensionally (step S105).
[0080]
Next, in step S106, it is determined whether or not the release button 119 has been turned on by the operator. If the release button 119 has been turned on by the operator in step S106, the stereoscopic video signal 143 synthesized by the signal synthesizing unit 114 is recorded in the recording unit 117 (step S107). It is determined whether or not to end the imaging operation of the compound-eye camera. If the imaging operation is to be ended, the power switch of the compound-eye camera is turned off. If the imaging operation is not to be ended, the process returns to step S101.
[0081]
In step S103, if the relative shift amounts of the respective rotation angles of the camera heads 113a and 113b are not within the predetermined range, as shown in the composite diagram of the two-dimensional video signal in FIG. The two-dimensional video signals 161 and 162 obtained by the image sensors 112a and 112b are combined as one two-dimensional video signal 163 by the signal combining means 114 while maintaining independent images (step S109), and the process proceeds to step S105.
[0082]
If the release button 119 has not been turned on by the operator in step S106, the process returns to step S101.
[0083]
This completes one imaging operation of the compound-eye camera according to the third embodiment.
[0084]
As described above, in the third embodiment, since the lenticular lens 132 is used for the display means 116, there is an advantage that the operator does not need special glasses such as polarized glasses even when displaying a stereoscopic video signal. .
[0085]
(Fourth embodiment)
Hereinafter, the appearance of the compound eye camera according to the fourth embodiment of the present invention will be described with reference to FIG. Here, FIG. 17 is an external view of a compound-eye camera according to the fourth embodiment of the present invention.
[0086]
In this figure, the difference from the external view of the compound eye camera shown in FIG. 12 of the third embodiment described above is that the camera heads 113a and 113b are arranged on the left and right sides of the compound eye camera body 120, respectively. The point is that the heads 113a and 113b are arranged above the compound-eye camera body 120, respectively. Thereby, the camera heads 113a and 113b rotate around the vertical axis. The configuration of the compound-eye camera is the same as that in FIG.
[0087]
Hereinafter, the imaging operation of the compound eye camera according to the fourth embodiment of the present invention will be described with reference to FIG. Here, FIG. 18 is a flowchart showing the imaging operation of the compound eye camera according to the fourth embodiment of the present invention. Unless otherwise specified, all operations of the compound eye camera according to the fourth embodiment are performed by the system controller 118.
[0088]
First, when a power switch of a compound-eye camera (not shown) is turned on (step S200), focus adjustment and aperture adjustment are performed on a subject (step S201).
[0089]
Next, the rotation angles of the camera heads 113a and 113b are detected by the angle detection means 115a and 115b (step S202).
[0090]
Then, in step S203, a two-dimensional video signal obtained by the camera heads 113a and 113b from the rotation angles of the camera heads 113a and 113b and the focal lengths, focusing distances, and distances between the imaging optical axes of the lenses 111a and 111b. Is determined, and it is determined whether or not the overlap amount is larger than a predetermined range.
[0091]
In step S203, when the overlap amount is larger than the predetermined range, the two-dimensional video signals 141 and 142 obtained by the image pickup devices 112a and 112b are formed into a comb shape by the signal combining unit 114 as shown in FIG. The stereoscopic video signals 143 are alternately combined into one stereoscopic video signal 143 (step S204), and the synthesized stereoscopic video signal 143 is displayed by the display unit 116, and the operator visually recognizes a wider panoramic video or video in two different directions. Can be performed (step S205).
[0092]
Next, in step S206, it is determined whether or not the release button 119 has been turned on by the operator. If the release button 119 has been turned on by the operator in step S206, the stereoscopic video signal 143 synthesized by the signal synthesizing unit 114 is recorded in the recording unit 117 (step S207).
[0093]
Thereafter, in step S208, it is determined whether or not to end the imaging operation of the compound-eye camera. If the imaging operation is to be ended, the power switch of the compound-eye camera is turned off. If the imaging operation is not to be ended, the process proceeds to step S101. Return.
[0094]
If it is determined in step 203 that the overlap amount is smaller than the predetermined range, the process advances to step S209 to determine whether the overlap amount exists.
[0095]
In step S209, if there is an overlap amount, the two-dimensional video signals 164 and 165 obtained by the imaging elements 112a and 112b are combined as shown in the composite diagram of the two-dimensional video signal in FIG. The two signals are combined into one continuous two-dimensional video signal 166 by the means 114 (step S210), and the process proceeds to step S205.
[0096]
In step S209, if there is no overlap amount, the two-dimensional video signals 161 and 162 obtained by the imaging elements 112a and 112b are converted into independent video signals by the signal synthesizing unit 114 as shown in FIG. The two signals are combined as one two-dimensional video signal 163 (step S211), and the process proceeds to step S205.
[0097]
If the release button 119 has not been turned on by the operator in step S206, the process returns to step S201.
[0098]
This completes one imaging operation of the compound-eye camera according to the fourth embodiment.
[0099]
As described above, in the fourth embodiment, there is an advantage that a panoramic image can be captured by setting the rotation direction of the camera heads 113a and 113b to be around the vertical axis.
[0100]
Although the third embodiment and the fourth embodiment both describe the capture of a still image, the present invention is also effective for a moving image. Further, in both the third and fourth embodiments, the video signal synthesized by the signal synthesizing unit 114 is recorded, but the video signal before synthesis may be recorded.
[0101]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, a stereoscopic video signal synthesizing unit that synthesizes a plurality of video signals of a subject imaged by a plurality of imaging units so as to be visually recognized as a stereoscopic video signal, Since there is provided a composite video signal display unit for displaying a stereoscopic video signal synthesized by the video signal synthesizing unit, a plurality of video signals of a subject imaged by the plurality of imaging units can be synthesized into a stereoscopic video signal. The stereoscopic video signal can always be displayed on the screen, so that the stereoscopic effect of the video can be adjusted while capturing the image.
[Brief description of the drawings]
FIG. 1A is a front view of a compound-eye camera according to a first embodiment of the present invention, and FIG. 1B is a rear view of the compound-eye camera according to the first embodiment of the present invention.
FIG. 2 is a perspective view of the compound eye camera according to the first embodiment of the present invention.
FIG. 3 is a block diagram of a configuration of a compound eye camera according to the first embodiment of the present invention.
4A and 4B are explanatory diagrams of conversion of a two-dimensional video signal into a stereoscopic video signal, wherein FIG. 4A shows a right video signal, FIG. 4B shows a left video signal, and FIG. 4C shows a stereoscopic video signal. .
FIG. 5 is an explanatory diagram of a control signal.
FIG. 6A is an explanatory diagram in which a lenticular lens 61 is arranged as a stereoscopic image adapter, and FIG. 6B is an explanatory diagram in which a parallax barrier 62 is arranged as a stereoscopic image adapter.
FIG. 7A is a front view of a compound-eye camera according to a second embodiment of the present invention, and FIG. 7B is a rear view of the compound-eye camera according to the second embodiment of the present invention.
FIG. 8 is a perspective view of a compound eye camera according to a second embodiment of the present invention.
FIG. 9 is a block diagram showing a configuration of a compound eye camera according to a second embodiment of the present invention.
FIG. 10 is an external view of the compound eye camera according to the first embodiment of the present invention.
FIG. 11 is a block diagram of a configuration of a compound eye camera according to a third embodiment of the present invention.
FIG. 12 is an external view of a compound-eye camera according to a third embodiment of the present invention.
FIG. 13 is a diagram showing a configuration of a display means 116.
FIG. 14 is a composite diagram of a two-dimensional video signal.
FIG. 15 is a flowchart illustrating an imaging operation of the compound-eye camera according to the third embodiment of the present invention.
16A is a composite diagram of a two-dimensional video signal, and FIG. 16B is a composite diagram of a two-dimensional video signal.
FIG. 17 is an external view of a compound-eye camera according to a fourth embodiment of the present invention.
FIG. 18 is a flowchart illustrating an imaging operation of the compound eye camera according to the fourth embodiment of the present invention.
[Explanation of symbols]
31a, 31b, 111a, 111b lenses
32a, 32b, 112a, 112b Image sensor
33a, 33b A / D converter
34a, 34b FIF0
35 Timing Generator
36 signal converter
37 CPU
38 Display control unit
39 3D display
40 Recording control unit
41 Recording medium
42 Camera control unit
113a, 113b Camera head
114 signal synthesis means
115a, 115b Angle detecting means
116 display means 116
117 Recording means
118 System controller
119 Release button
120 compound eye camera body

Claims (13)

  1. In a compound eye camera including a plurality of imaging means for converging the subject light and imaging the subject, and a display means for displaying a plurality of video signals of the subject imaged by the plurality of imaging means,
    Stereoscopic video signal synthesizing means for synthesizing a plurality of video signals of the subject imaged by the plurality of imaging means so as to be visually recognized as a stereoscopic video signal;
    Composite video signal display means for displaying a stereoscopic video signal synthesized by the stereoscopic video signal synthesis means ,
    Imaging selection means for selecting one of the plurality of imaging means;
    A compound-eye camera , comprising: means for imaging the subject with the one imaging means selected by the imaging selection means .
  2. 2. The compound eye camera according to claim 1 , further comprising a two-dimensional video signal display unit that allows a plurality of video signals of the subject imaged by the plurality of imaging units to be visually recognized as two-dimensional video signals . 3.
  3. 3. The compound eye camera according to claim 2, further comprising a display selection unit that selects one of the stereoscopic video signal synthesizing unit and the two-dimensional video signal display unit.
  4. 4. The compound eye camera according to claim 2, wherein a display cycle of the stereoscopic video signal on the composite video signal display unit is twice as long as a display cycle of the two-dimensional video signal.
  5. 5. The compound eye camera according to claim 1, wherein said composite video signal display means includes a lenticular lens.
  6. The compound eye camera according to any one of claims 1 to 4, wherein the composite video signal display unit includes a parallax barrier.
  7. The compound eye camera according to any one of claims 2 to 4, further comprising: glasses with shutters that operate in synchronization with a display cycle of the two-dimensional video signal on the composite video signal display unit.
  8. A rotation angle detection unit that holds the plurality of imaging units so as to be rotatable with respect to the composite video signal display unit, and detects a rotation angle of each of the plurality of imaging units with respect to the composite video signal display unit; The compound eye camera according to any one of claims 1 to 7 , further comprising:
  9. And a second display selection unit that selects one of the two- dimensional video signal display unit and the stereoscopic video signal synthesis unit based on the rotation angle detected by the rotation angle detection unit. The compound eye camera according to claim 8 .
  10. A plurality of imaging steps of converging the subject light and imaging the subject, and an image processing method including a display step of displaying a plurality of video signals of the subject imaged by the plurality of imaging steps,
    A stereoscopic video signal synthesizing step of synthesizing the plurality of video signals of the subject imaged by the plurality of imaging steps so as to be visually recognized as a stereoscopic video signal;
    A combined video signal displaying step of displaying the three-dimensional video signal combined by the three-dimensional video signal combining step ;
    An imaging selection step of selecting one imaging step among the plurality of imaging steps;
    Imaging the subject in the one imaging step selected by the imaging selection step .
  11. 11. The image processing method according to claim 10 , further comprising a two-dimensional video signal display step of displaying a plurality of video signals of the subject imaged in the plurality of imaging steps so as to be visually recognized as a two-dimensional video signal .
  12. 12. The image processing method according to claim 11 , further comprising a display selecting step of alternatively selecting the stereoscopic video signal synthesizing step and the two-dimensional video signal displaying step.
  13. 13. The image processing method according to claim 11, wherein a display cycle of the stereoscopic video signal in the composite video signal display step is twice as long as a display cycle of the two-dimensional video signal.
JP26120796A 1996-09-11 1996-09-11 Compound eye camera and image processing method Expired - Fee Related JP3595634B2 (en)

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Applications Claiming Priority (5)

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JP26120796A JP3595634B2 (en) 1996-09-11 1996-09-11 Compound eye camera and image processing method
DE69733233T DE69733233T2 (en) 1996-09-11 1997-09-10 Image processing for three-dimensional rendering of image data on the display of an image capture device
US08/926,817 US6549650B1 (en) 1996-09-11 1997-09-10 Processing of image obtained by multi-eye camera
EP97307026A EP0830034B1 (en) 1996-09-11 1997-09-10 Image processing for three dimensional display of image data on the display of an image sensing apparatus
DE69733233A DE69733233D1 (en) 1996-09-11 1997-09-10 Image processing for three-dimensional rendering of image data on the display of an image capture device

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